Network Connects Slowly In Kernel 2.6 Using IPv6

Jeff Pitman symbiont at berlios.de
Wed Apr 21 13:41:20 UTC 2004


On Wednesday 21 April 2004 21:16, Nils O. Selåsdal wrote:
> On Wed, 2004-04-21 at 15:00, Jeff Pitman wrote:
> > be obnoxiously slow, both DNS lookups and simple "telnet
> > www.google.com 80" tests.
>
> With ipv6 enabled, the libc resolver will afaik try to
> resolve hostnames as ipv6 addresses first. For alot of reasons
> that might take a long time..
> [...]
> So perhaps there should be(and maybe there is..) a way to say
> try ipv4 first in /etc/resolv.conf ?

This is interesting.  However, the first hurdle is something deeper than 
DNS because simple connects using "telnet x.x.x.x 80" takes longer  
with IPv6 enabled.  Editing /etc/modprobe.conf did the trick for me.

take care,
-- 
-jeff





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